Planoqrapii co



0. G, WYSONG, DECD.

r. l. WYSONG. EXECUTRIX.

CA SE CLAMP. APPLICATION FILED DEC- 10. I917.

Patented July 29, 1919.

6 SHEETS-SHEET I- Olmedo W'ysong ethane 5 0. C'. WYSONG, DECD.

' r. I. wYsoNG. zxscunux.

CASE CLAMP.

APPLICATION FILED DEC-10.1917.

Patented July 29, 1919.

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lmlmmlmmmgyummu O medod ysong. 44% 41 THE COLUMBIA PLANOGRAPI! c0., WASHINGTON, D. c

0. c. wvsowe. DECD. F. I. WYSONG, EXECUTRIX.

CASE CLAMP.

APPLICATION FILED DEC-10, I917. 1,31 1,632.

Patented July 29, 1919.

e SHEETS-SHEET 3.

rHE coLumum vLANOcRAPM 60.. WASHINGTON, 17.. c.

0. C. WYSON y DECD.

F- WYSONG, EXECUTRIX- CASE CLAMP.

APPLICATION FILED DECJO, l9l7. '1 ,31 1 ,632, L Patented July 29, 1919.

6 SHEETS-SHEET 4.

ms COLUMBIA PMNOGRAPH C0, WASHINGTON. n. c.

O. C/WYSONG, DEC'D.

F. I. WYSONG, EXECUTRIX.

CASE CLAMP. APPLICATION FILED DEC- 10, I917- 1,3 1 1,632, Patented July 29, 1919.

' 6 SHEETS-SHEET 5- 4 1 Egg? m JEN m attozuugs OLmedo C. Wgmng THE COLUMBIA PLANDGRAPH 80.. WASHINGTON, D. C.

0. C. WYSONG. DECD.

........ Ne, EXE'CUTRIX.

' Patented July 29, 1919.

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OLMEDO C. WYSONG, OF GREENSBORO, NORTH CAROLINA; FANNIE I. W SZSONG I EXECUTRIX 0F SAID OLMEDO C. WYSONG, DECEASED.

CASE-CLAMP.

To all whom it may concern.-

Be it known'that I, OLMEDO C. WVYsoivG, a citizen of the United States, and a residentof Greensboro, in the county of Guilford and State of North Carolina, have invented a new and useful Improvement in Case- Clamps, of which the following is a specification.

My present invention relates particularly to case clamps, whose general function is to clamp the sections or parts of the frames of articles of furniture in assembled relation, preparatory to the locking of the joints thereof by! brads, wooden pins or other means, and for which purpose it is particularly desirable that the assembled parts be held in such manner as to permit of their adjustment as a whole in the assembled relation, in order to conveniently reach each and every corner thereof both inside and outside.

In the construction embodying my invention therefor, a pair of opposing spaced apart platens, the distance between which may be readily adjusted before the application of pressure, are utilized in connection with such supports as permit of their pressure toward one another by power means, under control of the operator, and of their rotation about a coaxial plane irrespective of such pressure.

My invention aims to provide a case clamp which may be readily and quickly adjusted and manipulated in use, in whichrelatively fine adjustment may be accomplished, and in which the power may bequickly applied and released. My invention further aims to provide a case clamp having power actuated means for applying pressure to the platens and provided with other means, ordinarily acting as an adjusting means, and capable of bringing about the desired pressure of the platens manuallyn Various other objects, and the resulting advantages of my invention, ent from the following description-of its preferred embodiment, in which myinvention in its most specific aspect resides.

In the accompanying lrawings which illustrate this preferred form and consti tute a part of this specification,

Figure 1 is a front elevation'of my improved case clamp complete. i

will be apparv Specification of Letters Patent. Patented July 29, 1919. Application filed December 10, 1917. 7 Serial No. 206,421.

Fig. 2 is a side view looking at the power actuated platen.

Fig. 3 is a detail vertical section through the power upright taken substantially on line 3-3 of Fig. 2.

Fig. 4 is a front view of the intermediate portion of the power upright.

Fig. 5 is a perspective view-of the central portion of the power actuated platen.

Fig. 6 is a perspective view of the parts shown in Fig. 4..

Fig. 7 is a detail perspective view of the lower portion of one of the platens looking at its inner face.

Fig. 8 is a sectional side view of the lower portion of one of the platens looking at its outer face.

Fig. 9 is a vertical section through a portionof one of the platens.

Figs. 10 and 11 are detail horizontal sections takenrespectively on lines 10-10 and 11-11 of Fig. 9.

Fig. 12 is a vertical section through the taken substantially on'line 16-16 of Fig. 15.

Fig. 17 is a sectional view taken substantially on line 17-17 of Fig. 14, and

Fig. 18 is a vertical section through the lower portion of the frame at one end of the case clamp as hereinafter described.

Referring now to these figures, the frame of my improved case clamp, which is generally rectangular in form, consists of upper and lower longitudinal parallel beams 20 and 21, the opposite endsv of'which are connected by vertical beams 22 and 23 so as to form a rigid structure. The lower ends of the upright beams 22 and 23 are secured to the opposite ends of the lower longitudinal beam 21 in connection with pairs of laterally projecting foot blocks 24 and 25 which thus support the entire case clamp in upright position and in such manner that it may be moved from place to place as desired, although it is obvious that I may secure the same permanently in any desired position consists of lateralily to be seen in Fig. 12.

plates 28 and 29 has slotted openings 34' and by any suitable means where such a mounting is either desired or necessary.

The upright beam 22 at one sideof the frame is a part of the frame only and inactive 'inth'e operation ofjits parts, wh'ilethe beam 23 at the oppositeen ds of'the frame forms What I will hereafter denote the; power head, in order to distinguish the same from the adjustable manually controlled hea'd26, the upperand lower 'endsof which are slidable in connection with the longitudinal beams 20 and 21 so that it may be adjusted toward "and away from the power head 23, the latter of which is, of course, stationaryat all times.

For this purpose, the longitudinal beams 20 and 21 which may be of the 'lH-shape as shown, or of any other suitable construction, have their lower and upper edges respec tively, provided with "a longitudinal series of cross slots 27'ad-apted vfor engagement by vertically movable latch plates 28 and 29 at the upper and lower ends respectively, of the adjustable head 26. This adjustable heada26 spaced uprights 30 and 31 as best seen in Fig. 14, whicharebraced in their. spaced relation by upper and iower inclined braces -32 bol.ted through'the uprights by bolts 33 and provided at their outer ends with flat faces adjacent theYouter edges of the beams 30 and 31 forming seats orthes'aid latch plates T28 and '29 of similar construction, the former of -which is plainly Each of these latch through which bolts 35 extend into therespective end of the braces 32, the innerends of the latch plates 28 ani 29 being pivotally connected to v the out-er 5 ends of vertical 5 connectin rods 36 and '37 the inner ends of which, as 'seen'in Fig. i1, are connected to a lever 38 pivotallymounted upon astationary portion :of the adjustable uprights and manipulation of which serves to simul-H tan'eously move the two latch plates 28 and 29 into and out of :active'position.

Thus, by a comparison-of Figs. 1, 12and 18, the latter "of which s-howsthe lower plate it is obvious that bymanipulat ing the lever '38, to release "thelatch plates 28 and 29, the adjustable heard '26 'isfreed from the upper and lower frame beams 20 and 21.

The two side uprights 30 and .31 of the adjustable head 26 laps slightly the outer faces of the lower beam-21 and extend upwardly at their upper ends beyond the upper beam 20 and-are there connected in a rigid manner, by bolts-39,to acarr'iage 40 supporting at its opposite 'endsthe axles or shafts 41 as seen in Figs-1 12, 15 and16,in particular, upon which grooved rollers 42 are mounted to engage the upper edges of the upper beam 20 and thus support the ad justable head 26 so that when released as 'as'the adjustable platen, as the powerplaten, The power platen 1 1 '23'a'n dthe ad ustable head 26, is carried by one'of these heads and in order that they may hereinafter be readily distinguished from one another, I will term the platen 43 and the platen l-l has a smooth inner face like the platen 43 and may be ribbed as at 45 upon its outer mete strengthithe same, the ribs radiating from "a hub ring 46 vithin the "latter of which is bolted"the inner head 47 of its cylindrical 'plunger48 as best seen in Fig. 3, the said plunger extending "through the cylindrical bore *of its bearing'box 49., the latter horizontally slidable between upper andilowergui-des 50 extending between the spaced uprights =-51 and 52 of the, power head- 23 and bolted"therethrough by bolts 53. At theouten' en'd of the plunger 48 is bolted-a cap 54*engaging the outer end-of the boxing 49, and between the inner end of the boxing and the-adjacentface of the inner head 47 of the plunger, are disposed bearing rings '5'5'supporting' air-annular series of bearing "balls" 56, by means rotation :of the plunger 48 along with its platen Mis. permitted"irrespective of its pressure against the boxing 49.

TheboXing 49 has a lower cutout portion as particularly seen in Fig. 3, within which is disposed a'link '57, one end beingpivotally connected tothe-boxing- ,at 58, and its opposite-end"being- .ivotalily' connected at .59 to the short uprig it arm 60 of a :bell crank lever fulcrumed -upon across bolt 61 and the lower downwardly and outwardly inclined arm 62 of which is pivotally connected at its outer end at 63to the upper end of a piston '64:,the latter working vertically in a cylinder 65.

' The cylinder 65 is secured between the lower port-ions ofthe spaced uprights 51 and 52 ofthe 'stationary head 23, and may be bolted through #by bolts 66 in the manner shown in Fig. 1. The lower closed end of the cylinder '65 is supplied with fluid, steam, air and the like, through air-intake pipe67 leading to a three-way valve generally seen at'68, having a fluid supply pipe 69 and an exhaust pipe 7 O and having a handle 71 by means-of which it may -"be turned to register the-cylinderintake pipe 67 with either the fluid s-upp1y pipe 69*ortheexhaust pipe 70.

It is obvious that when thevalve'h'andle 71 is turned to register th .valve with the supply pipe-'69 andthe cylinder intake pipe 6! ,fluidissupplied into the lower portion of the cylinder which forces the piston 64 upwardly, rocking thebell crank lever and shifting the boxing s6 inwardly by virtue of the connection of-the 'bell crank lever therewith as previously described, in order to thrust the power platen 44 toward the adjustable platen 43, previous to which the adjusta'ble head 26 has been adjusted with respect to the power head 23 in such manner that when the frame to be clamped is between the platens,'just sufficient room is left for the clamping of the parts by such movement of the boxing 49 of thepower platen as will permit the bell crank lever 62 to assume a position almost, if not quite, horizontal, inasmuch as the point of greatest power comes at this time.

' The adjustable platen is constructed similar to the power platen 44 and its outer hub ring 71, as seen in Fig. 12, receives the inner head 72 of its cylindrical outwardly projecting plunger 73, the latter journaled through a slidable boxing 74 movable between upper and lower stationary guides 75 and 7 6 secured, by being bolted through, or otherwise, between the spaced uprights 30 and 31 of the adjustable'head 26.

As in the case of the power platen, the cylindrical plunger 7 ,3 of the adjustable platen 43, has a cap 77 at its outer end to engage the outer end of its boxing 74, between the inner nd of which boxing and the head 7 2 of the plunger, are bearing rings 78 supporting an annular series of balls'7 9 so that the ad ustable platen 43 is thus rotatable as freely as the power platen, when desired. It is understood, of course, that when a frame and the like is-clamped between the platens, and the latter rotated upon the coincident axes of their plungers, such rotation is simultaneous, as the clamped frame forms a firm connection between the platens, so that control of one of theiplatens will in operation, efi'ect control ofboth thereof. To this end, the boxing 74 of the adjustable platen, as seen in Fig. 13, has a laterally offset and longitudinally extending bearing arm 80 in which a latch pin 81 is longitudinally slidable and normally held against the outer face of the hub ring 71 of the platen 43 by means of a spring 82, as seen in Fig. 17, compressed between the inner end of the latch pin 81 and a plug 83 closing one end of the bearing arm 80, said plug having an opening forming a bearing for the handle or stem 84 of the latch pin 81 provided with a gnarled head 35 by means of which the plunger may be manually withdrawn against the tension of the spiing'82, should it stick at any time in operation. The outer face of the hub ring 71 of the platen '43 has an annular series of recesses into which the round- .ed outer end of the latch pin'81 is movable, the recesses being seen at 86 in Figs. 12 and 13 in particular, so that the two platens with the frame clamped therebetween may be held in various positions'against-accidental displacement although in such manner that a sudden pull or jerk thereon will serve to displace the latch pin and permit of their rotation.

The boxing 74 of the plunger 73 of the adjustable platen 43 is cutaway at its inner and lower portions to receive the boss 87 of the lower rigid guide 76 of said boxing, which boss has a threaded opening parallel to the axis of the plunger 73, to receive the threaded inner portion 88 of a manual adjusting shaft 89 journaled through a depending portion 90 of the'boxing 74 and provided at opposite sides of said depending portion 90 with collars 91 and 92 so as to prevent longitudinal movement of the adjusting shaft with respect to the boxing 74. At its outer end, the shaft 89 has an adjusting wheel 93 so that by manual rotation of this wheel and consequently of the shaft 89, the boxing 7 4 is adjusted inwardly and outwardly to adjust the platen 43, by virtue of the engagement of the threaded portion 88 of said shaft in the threaded stationary boss 87.

Thus, it is obvious that where more minute adjustment of the adjustable head 26 is desired than can be accomplished by virtue of the latch plates 28 and 29 within the slots 27, such adjustment may be accomplished through the action of the manual adjusting shaft 89, and it is further obvious that should the power connections before described for actuating the power platen 44 fail for any reason, as for instance failure of the source of supply of the operating fluid, the manual adjusting shaft 89 may be utilized to actuate the adjusting platen 43 and provide the necessary power for tightly clamping a frame between the platens in place of the power actuating means of the power platen 44, as previously described.

Referring now to Figs. 2, 7, 8 and 9, showing the power platen 44 in detail, it is to be borne in mind that in so far as their particular construction is concerned, each of the platens is the counter-part of the other, so that a description of one will suflice for them both.

Each of the. platens has horizontal transverse bearings 94, one above and one below its axis, for the reception of parallel transverse shafts 95, the extremities of which project beyond the sides of the platens and are squared as seen at 96, said shafts also having bevel gears 97 adjacent their opposite ends in mesh with bevel gears 98' upon the adjacent ends of vertical screw shafts 99 journaled in stationary bearings 100 at the opposite side edges of the platens, these bearings being'securely bolted in the platens as seen at 101 in Fig. 7 in particular.

The side edges of the platens have vertical ribs 102 with which the grooves of vertically adjustable brackets 103 coact, these brackets having internally threaded bearings 104 through which the screw shafts 99 extend, so that bytherotationof the latter, the brackets 103 either above or belowthe horizontal plane of the axis of the -platens may be simultaneously adjustedat the opposite sides thereof. a v i The brackets 103 at the upper and lower portions of the platens are connected in pairs by horizontal beams 105,;of-dove-tail shape, supporting horizontally adjustable brackets 106 having dove-tail grooves through which the beams 105 exted, these latter brackets 106 being secured in adjusted position by set screws 1'07, and being flanged to support horizontal frame-sup porting rails 108, at one end of thelatter of which are angular brackets 109 forming stops, the latter also having dove-tail grooves receiving the beams .105 and-.ibeing secured in adjusted position by set screws 110. I i -v The inner opposing faces of the platens 43 and 4:4: are divided by vertically and horizontally extended lines 111 and 112, which cross at a point coincident with-the axis of its plunger before described, and which lines are blocked ofi or graduated as shown, in order to form a gage so that by proper adjustment of the upperand lower frame supporting rails 108, the longitudinal axis of the frame :to be clamped may .be properly alined with the longitudinal axis of rotation of the two platens 43 and-44, for which purpose the stop-brackets 109 coop erate with the other parts so that with the platens adjustedas seen in Fig. 1, the frame A may be shifted between the same and also between the upper row ofrails 108- until the stops 109 are encountered. I i

In order that pressure in use may-be pre- Vented from inarringor abradi-ng the ends of the frame in the clamped position between the platens, the inner surfaces of-the latter are preferably provided with buffer strips 113, secured vertically thereofand in spaced relation, thus preventing the relatively hard surface of the platens from coming directly in contact with theframe'being clamped. r e i i By the use of a crank having a squared socket and as seen in dotted lines at 11.4 in Fig. 9, engaged first with one and then with the other of the shafts 95, it is obvious that the upper and lower rails 108 maybe in turn adjusted vertically as desired, the brackets 103 at opposite sides of the platens being simultaneously moved so thatthere will be no danger of binding during their adjustment." V-Vi-th the rails 1 08" properly adjusted and the stops 10.9 properly .posi tioned, it is obvious that with the adjustable head 26 properly posit'oned with respect to the power head 23, a spaceis formed into which the frame of the article of furnitu-i-e beingoperated upon, maybe shifted,

the parts of such frames havingitheirdowels adjust; the 7 avalve fiseas vbefore described-to secure the idesired-pressureeupon the power head 443 .80 that movement toward the adjustablehead 413 the parts vof the-frame will ;be jammed tightly together. and heldin such position: until the .yalye is shifted so that the, cylinder 65 isv exhausted of, pressure. 1n itheivmeantime, with the frame clamped between the platens 43 and 44;, it is desiredto lock-the joints, betweenthe parts ofthe frame/by means of either wooden pins through drilled openings (or by wired brads and the like,endtogdethis it is obviously necessarygto rea'ch practically gevery ,corner ofethe frame {both .inside; end-out, and, to avoid inconvenient positions; and necessitate the operator. rimning ,ar ound; and. .around the machine, :it is. permitted byi z -irtue of the foregoing construction that, the two platens 43 and Ashe rotated in alnison upon the axes of their plungers standing-,upon; one side of .theenachine, the;operator may adjust the platens and conveniently reach each and :eVerypartIof- -the frame clamped position,forethe purposendescribed, I, V y it is'fur'thenmore' ohviousthat when this operation has been completed, the frame may :be instantly: released and .withdrawn, andi-thatiby virtue of theeadjnstability of the ead-26 as well as the-,adj ustahi-lity of, the

supporting mails 108,-of the two; platens and of the st0ps109ythe machine is adaptedto a great variety of. work, both as to character and size.

e, It is fur-themnone obvious that many of the parts, for instance the ieonstruction of the upper and; lower -beains-;20 and I 21 =-apart from their slots 27., and {the stituent parts of the, heads 23 :and26, be modifiedand Lvaried; :as desired, w ithou-t departing in the slightest from the principlesihere evolved andt'he terms of the-appended-claims," r a I I, I claim: 7 v 1. A case clamp coniprising a supporting frame, a pair: of, supporting heads,, one of which is adjustable with respect to the other, a pair of rotatabale platens carried-by SiLld heads, manuallyv controlled means -,for ad'- justing one of said platens in its head topes icu r r n ward and away from the other, and power actuated means for moving the other of said platens in its head toward and away from the first-named platen.

2. A case clamp comprisinoa supporting frame, a pair of clamping pl atens mounted in the frame and having supporting means in respect to which they are rotatable and movable toward and away from one another, manual means for moving one of said platens, and power connections engaging one of said platens for forcing the same toward the other platen, for the purpose described.

3. A case clamp comprising a frame, a pair of normally spaced and vertically disposed clamping platens rotatably mounted in the frame and movable toward and away from one another, each of said platens having vertically adjustable and vertically spaced work supporting rails and having adjustable stops at one end of the said rails movable with the latter.

4. A case clamp comprising a frame, a pair of supporting heads within said frame, rotatable platens carried by the heads and movable toward and away from one another, one of said heads having a horizontally shiftable boixing rotatably supporting its re-- spective platen, a bell crank lever fulcrumed in the said head and connected at one arm to the said shiftable boxing, a power cylinder havino a piston connected to the other end of said bell crank lever, and valved fluid supply means for the said power cylinder, for the purpose described.

5. A case clamp comprising a frame, a pair of supporting heads within the frame, one of which is stationary and the other of which is adjustable toward and away from the first head, said frame including upper and lower parallellongitudinal beams provided with longitudinal series of cross slots, upper and lower latch plates movably carried by the adjustable head for engagement within the said beam slots, and means for simultaneously adjusting said latch plates into and out of active position.

Copies of this patent may be obtained for 6. A case clamp comprising a frame, a pair of supporting heads within the frame, one of which is stationary and the other of which is adjustable toward andaway from the first head, said frame including upper and lower parallel vided with longitudinal series of cross slots, upper and lower latch plates movably carried by the adjustable head for engagement within the said beam slots, a lever mounted upon the adjustable head, and connecting rods connecting the said lever with the said latch plates, whereby the latter may be simultaneously moved into and out of active position.

7 A case clamp comprising a frame, a pair of rotatable clamping platens movable toward and away from one another within the frame, a pair of supporting heads carrying the platens and one of which has a slidable boxing, a plunger carried by the respective platen and journaled in the boxing, said head having guides for the boxing, one of which is provided with a threaded opening, a manual adjusting shaft j ournaled through a portion of the boxing and having a threaded portion extending through the threaded portion of said boxing guide, and a handle for said shaft whereby the respective platen may be manually adjusted toward and away from the other platen.

8. A case clamp comprising a frame including upper and lower parallel beams, a pair of platen supporting heads within the frame, one of which is stationary and the other of which is adjustable, a roller mounted carriage disposed upon the upper longitudinal frame beam and supporting the adjustable head for movement toward and away from the stationary head, means car ried by the adjustable head and engaging said upper and lower frame beams to secure the head in adjusted position, rotatable clamping platens carried by the said stationary and adjustable heads, and means for moving said platens toward and away from one another, for the purpose described.

OLMEDO G. WYSONG.

five cents each, by addressing the "Commissioner of Patents.

Washington, D. G.

longitudinal beams pro- 

